Windows Defender is considered one of the best anti-malware software used to protect your system from all sorts of issues such as Device security, Device performance, Real-time protection, App and browser control (Parental control), etc. Updating Windows Defender is very much crucial for the excellent performance of your computer. Here are some of the processes for how to update windows defender.
Enable Windows Defender from Group Policy:
Sometimes, you will receive a message, "Group Policy turns off this app." It means Windows Defender requires activation using the registry editor. You will face this issue if there is another antivirus enabled on your computer. So you need to enable your Windows Defender from the Group policy. Follow the below steps to turn on Windows Defender from Group policy.
Step 1:Press Windows + R.
Step 2:Type regedit in the Run dialog box and press Enter to open the Registry Editor.
Step 3:Once the Registry Editor opens, locate the following key.
Step 4:Set Registry Disable AntiSpyware value as 0 and click Save.
If the key mentioned above is not there, you need to create and perform the function.
Step 5:Right-click on the Windows Defender key and select the New DWORD option.
Step 6:Rename the file to Disable AntiSpyware and make its value 0.
Step 7:Click Save.
Restart Security Center Service:
Step 1:Press the Windows + R keys.
Step 2:In the Run dialog box, you’ll have to type services.msc and press Enter.
Step 3:On the services tab, select Security Center and right-click on it.
Step 4:Select Restart and click on it.
Remove third-party anti-malware software:
Step 1:Press Windows + I to open Settings.
Step 2:Click on the Apps option and select the Anti-malware program from the pop-up list.
Step 3:Right-click on the anti-malware program which is appearing on the screen.
Step 4:Select the Uninstall button.
Step 5:Click the Uninstall button again in order to confirm the changes.
Use system file checker:
Step 1:Click Start and type Command Prompt or cmd in the search box.
Step 2:Right-click on the Command Prompt option.
Step 3:Select Run as administrator and click on it.
Step 4:If you see a prompt asking for the administrator password, type the password and click Allow.
Step 5:At the command prompt, type the following Command- sfc /scannow
Step 6:Press Enter.
The sfc /scannow command will scan all system files and replace corrupted files with a cached copy located in a compressed folder at %WinDir%\System32\dllcache. Don't close the Command prompt until the verification is completed.
Update Windows Defender using Command Prompt:
Step 1:Press Windows + R and then open the Run dialog box.
Step 2:Type cmd in the empty box. Press Ctrl + Shift + Enter to open the Administrator Command Prompt.
Step 3:On the Administrator Command Prompt screen, type the following command one by one.